People outside a McDonald's in Washington, DC say the severe E. coli outbreak at the fast food chain makes them "think twice about eating McDonald's," after one person died and dozens fell sick. All affected people recalled having had Quarter Pounders. The outbreak, which began in late September, spans 10 western states with most of the 49 cases concentrated in Colorado and Nebraska, according to the US Centers for Disease Control and Prevention (CDC). IMAGES AND SOUNDBITES